▎ 摘 要
NOVELTY - Negative electrode comprises a negative electrode active material layer (110) containing a carbonaceous active material, and a graphene layer (120) formed on the negative active material layer, where the graphene layer has a thickness of 1-10 mu m. USE - Negative electrode for lithium secondary battery (claimed). ADVANTAGE - The negative electrode has increased specific surface area to allow a large amount of lithium ions to be adsorbed, and shows a low charge transfer resistance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing negative electrode for a lithium secondary battery, which involves: (A) forming negative electrode active material layer containing carbonaceous active material on negative electrode current collector; and (B) forming graphene layer having a thickness of 1-10 mu m on the negative electrode active material layer. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic cross-sectional view of the cathode for a lithium secondary battery. Cathode collector (100) Negative electrode active material layer (110) Graphene layer (120)